Deep-well propeller-pump.



PATENTED SEPT. 22,1903,

J. M. TILLOTSUN. DEEP WELL PROPELLER PUMP. Y

'APLIKTION FILED PEB. 7, 1903.

I0 MODEL..

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DEEP-WELL PR'oPELLER-PUMP.

SPECIFICATION forming part of Letters Patent No.

739,746, dated september 2a, ieee.

A duplication led February 7,1903. Serial No. 142.304.. (No model.)

To all whom 232'; may cori/cern:

Beit known that I, JAMES MADISON TiLLoT` SON, of Kinder, in the parish of Oalcasieuv and State of Louisiana, have invented a new and useful Improvement in Deep-Well Propeller-Pumps, of which the following is a specification. v

One form of pump for deep Wells consists Vof a vertical shaft bearing propeller-blades and arranged to be rotated so as to cause its propeller-blades to produce an upward dow from said Wells. Such long rotating shafts require to be guided at intervals in bearings, and for this purpose boxings have been provided with curved spring-wings extending out from the boxes andY adapted -to bind against the walls of the Well and hold said boxes stationary while the shaft revolves within the same. These spring-Wings scrape against the inner walls of the well-tube'in being inserted and removed with so much friction as to require a force of one or more tous to force the shaft and its boxings down, and, besides, any roughness on the sides of the well-tube is liable to catch against these spring-wings and damage them.

My invention consists in a deep-Well propeller-pump having loose boxings with arms or wings which are smaller than the well-bore and do not touch the sides of the same, except as the shaft may sway or vibrate, and a propeller of a diameter somewhat less than that 0f the boxing arms or wings, so that Vin any lateral movement of the shaft the arms of the loose boxing act as fenders against the sides of the well to strike the same and prevent the propeller from coming into contact with said Walls, the shaft being freely suspended in the well from its upper end, as will be hereinafter more fully described.

Figure l is a vertical section of a well-tubt ing with deep-well propeller-pump loosely suspended within the same; and Figs. 2 and 8 are details of the guideboxing, showing two forms of the same in cross-section within the well-casing,

A represent-s the propeller-shaf t, which may be either hollow or solid.

B B are propellers fixed rigidly to the shaft,

'of which there may be any desired number according to the depth of the well. At the lower end of the well these propellers may be two and one-half feet apart, while near the upper end of the Well they may be live feet apart. is placed one ofl my loose hoxings C, which have straight radial arms or wings c, with terminal dukes c' extending out to about one- .fourth of an inch from the well-casing, so that when the shaft is in the center of the casing these arms are perfectly free of the well-casing and with the boxing are capable of turning loosely on the shaft..l The propeller is made of a diameter somewhat smaller than the diameter of the boxing-arms, being about one-eighth of an inch less. These loose borings serve to resist lateral play in the shaft and act as fenders to prevent the propellers from coming in contact with the well-casing,

f the shaft supports it the wings may be made separate and bolted or riveted on, as seen in Fig. 2, or they may be cast in one piece with the boxing-sections, as seen in Fig. 3.

The advantages of my improved propellerpump With loose boxings are, first, the ease with which it will slide down into the wellcasing, as it'does not bind with any friction against the same; second, there is less friction on the boxings, as they hang loosely on the shaft, the whole weight of the shaft-pro pellers and wing-boxings being suspended on a ball-bearing collar in the pump-head above ground; third, the cheapness of manufacture,as my guide-boxes can be cast allin one piece, since there is no strain on the sanne in forcing it down the well, and it supports none of the Weight of the shaft, but, on the contrary,

as a fender merely.

Having thus described my invention, what claim as new, and desire to secure by Letters Patent, .isv 1f A rotary shaft fora deep-Well pump having one or more rigidly-attached propellers and having also suspended on said shaft near the propeller a loose or freely-swiveling fender-guide of greater diameter thanthe propeller, said fender-guide being composed of arms or-wings disconnected from each other at their outer ends and arranged to hang loose on the shaft and entirely unrestrained,

Just belowl each of these propellers since they are of larger diameter than the propellers. t

In forming the guide boXings or fenders which would make it lstrong enough,

l substantially as and for the purpose described.

2. A rotary shaft fora deep-Well pump having one or more rigidly-attached propellers and having also suspended on said shaft near the propeller a loose or freely-swiveling guideboxing having extended arms or Wings disconnected from each other at their outer ends and forming fenders arranged to hang free and unrestrained upon the shaft substantially as and for the purpose described.

3. A deep-well pump comprisingT a well-casing, a rotary shaft suspended therein and carrying one or more rigidly-attached propellers and having suspended on said shaft a loose and freely-swiveling fender-guide made of smaller diameter than the Well-casing but larger diameter than the propeller and arranged to hang free and unrestrained upon unrestrained upon the shaft and normally y out of contact with the Well-casing substantially as described.

JAMES MADISON TILLOTSON.

Witnesses:

LEONARD J. KEYS, HUGH D. GRIFFITHS. 

